# Variables & expressions introduction

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Evaluating expressions with one variable

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Evaluating expressions with two variables

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Evaluating expressions with two variables: fractions & decimals

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Expression value intuition

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Writing basic expressions with variables

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Writing expressions with variables

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**Variables & expressions introduction**with these 10 questions.About this unit

Learn what variables are and practice using them in expressions. The major concepts covered in these tutorials are substitution, the distributive property, and combining like terms.